I bought this out of curiosity.
Claim:
There will be 4 PDF files with the method
Fact:
Only 1 PDF included which is available online. The rest are (short and very high level) articles on websites.
Claim:
... and everything you need to start with step by step tutorial.
Fact:
There is
NOT a step my step tutorial included in this, just a .txt file with 4 links. It merely points you to some articles and gives you a feeling for what you would do *IF* the OP had actually given you a "step by step tutorial" as they claim to be providing.
Advice to others, don't bother in it's current form.
If the OP actually did provide a step by step guide, then yes this would be worth it. But at the moment, it's just not what the OP describes it.